Casio 3024 Timekeeping, Charging Guide, Viewing the Calendar Screen and Last Signal Screen, Setting the Time and Date, Daylight Saving Time (DST), Main Timekeeping Screen

Operation Guide 3024

Charging Guide

After a full charge, timekeeping remains enabled for up to about 8 months.

•The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.

Exposure Level (Brightness)	Approximate Exposure Time
Outdoor Sunlight (50,000 lux)	5 minutes
Sunlight Through a Window (10,000 lux)	24 minutes
Daylight Through a Window on a Cloudy Day	48 minutes
(5,000 lux)
Indoor Fluorescent Lighting (500 lux)	8 hours

•Since these are the specs, we can include all the technical details.

•Display on 18 hours per day, sleep state 6 hours per day

•1 illumination operation (1.5 seconds) per day

•10 seconds of alarm operation per day

•10 minutes of signal reception per day

•Stable operation is promoted by frequent exposure to light.

Recovery Times

The table below shows the amount exposure that is required to take the battery from one level to the next.

Exposure Level	Approximate Exposure Time
(Brightness)
	Level 4		Level 3		Level 2		Level 1
		▲		▲		▲		▲
Outdoor Sunlight (50,000 lux)			2 hours				47 hours
Sunlight Through a Window			6 hours				179 hours
(10,000 lux)
Daylight Through a Window			10 hours				289 hours
on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting			104 hours				– – –
(500 lux)

•The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

•You can also use the Timekeeping Mode setting screen to specify the illumination duration and 12/24-hour format, to toggle power saving on and off, and to show or hide the date/day of the week on the main timekeeping screen.

•Under factory default settings, the main timekeeping screen shows the current time only (no date or day of the week). You can change the configuration of the watch so the main timekeeping screen also displays the date or day of the week. For details about how to do this, see "Displaying the Date or Day of the Week".

Viewing the Calendar Screen and Last Signal Screen

You can press Ato display the current date and day of the week when they are not displayed in the main timekeeping screen. Pressing Cdisplays the Last Signal Screen.

•If you leave the calendar screen displayed for two or three minutes without performing any operation, the watch will return to the main timekeeping screen automatically.

Hour : Minutes : Seconds

PM indicator

	Press A.		Month – Day
▲	▲		Day of week
	Calendar Screen
	▲
	Press C.	▲

	Press C.	▲
DST indicator

Main Timekeeping Screen

Last Signal Screen

Setting the Time and Date

Make sure you select your Home City code before you change the current time and date settings. World Time Mode times are all displayed in accordance with the Timekeeping Mode settings. Because of this, World Time Mode times will not be correct if you do not select the proper Home City code before setting the time and date in the Timekeeping Mode.

To set the time and date

1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.

2.Press Bto change the flashing contents in the sequence shown below to select other settings.

l l l l l

l

l

ll

l

l

l

l

l

l l l

l

City

code

City Code

DST

12/24-Hour

Seconds

Hour

Format

Show/Hide

Power

Day

Month

Year

Minutes

Date and Day

Saving

3.When the setting you want to change is flashing, use Cand/or Dto change it as described below.

Screen:	To do this:	Do this:
	Change the city code	Use C (east) and D
		(west).
	Cycle between auto DST (AT), Standard	Press C.
	Time (OFF), and Daylight Saving Time
	(ON)
	Toggle between 12-hour (12H) and	Press C.
	24-hour (24H) timekeeping
	Reset the seconds to 00	Press C.
	Toggle the illumination duration setting	Press D.
	between 1.5 seconds ( ) and 2.5 seconds
	( )
	Change the hour, minutes, or year	Use C (+) and D(–).
	Change the month or day
	Toggle Power Saving on ( ) and off ( )	Press C.
---	Show (current date displayed) or hide	Press C.
	(indicated by ---) the date/day of the week
	on the main timekeeping screen

• See “City Code Table” for a complete list of available city codes.

• Auto DST (AT) can be selected only while YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below.

• For information about settings other than the time and date, see the following. Illumination duration: Illumination

Power Saving: Power Saving Function

• For details about showing or hiding the date/day of the week, see “Displaying the Date or Day of the Week”.

4. Press Ato exit the setting screen.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.

The time calibration signal transmitted from Fort Collins includes both Standard Time and DST data. When the Auto DST setting is turned on, the watch switches between Standard Time and DST (summer time) automatically in accordance with the received time signal.

•The default DST setting is Auto DST (AT) whenever you select YVR, LAX,

YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT as your Home City code.

•If you experience problems receiving the time calibration signal in your area, it probably is best to switch between Standard Time and Daylight Saving Time (summer time) manually.

To change the Daylight Saving Time (summer time) setting

1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.

2.Press Band the DST setting screen appears.

3.Use Cto cycle through the DST settings in the sequence shown below.

Auto DST (AT) DST off (OFF) DST on (ON)

4. When the setting you want is selected, press Ato exit the setting screen.

•The DST indicator appears to indicate that Daylight Saving Time is turned on.

Displaying the Date or Day of the Week

Under factory default settings, the main timekeeping screen shows the current time only (no date or day of the week). You can change the configuration of the watch so the main timekeeping screen also displays the date or day of the week.

You can select either the date or the day of the week for display along with the current time on the main timekeeping screen.

•For information about how to specify the contents of the main timekeeping screen, see “To show and hide the date/day of the week on the main timekeeping screen”.

•While display of the date/day of the week is turned on for the main timekeeping screen, you can press Ato toggle between display of the date (month and day) and the day of the week.

Toggling between the Date and Day of the Week on the

Main Timekeeping Screen

Hour : Minutes : Seconds

PM indicator

▲	Press A.
	▲
Month – Day	Day of week
Date Screen	Day of the Week Screen

To show and hide the date/day of the week on the Main Timekeeping screen

1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.

2.Press B10 times so the current date/day of the week setting is flashing.

•The current date will be flashing if the date/day of the week currently are shown, while ---will be flashing if they are hidden.

3.Press Cto toggle the date/day of the week between show (current date displayed) and hide (---displayed).

4.Press Ato exit the setting screen.

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